various: Fix spelling of "registered" in comments.

Some comments misspell "registered"; this fixes them. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 703fb26..9e31269 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -32,7 +32,7 @@
 	return NULL;
 }
 
-/* return EEXIST if the same logger is registred, 0 on success. */
+/* return EEXIST if the same logger is registered, 0 on success. */
 int nf_log_register(u_int8_t pf, struct nf_logger *logger)
 {
 	const struct nf_logger *llog;